WO2009139302A1 - Recording/playback device - Google Patents
Recording/playback device Download PDFInfo
- Publication number
- WO2009139302A1 WO2009139302A1 PCT/JP2009/058443 JP2009058443W WO2009139302A1 WO 2009139302 A1 WO2009139302 A1 WO 2009139302A1 JP 2009058443 W JP2009058443 W JP 2009058443W WO 2009139302 A1 WO2009139302 A1 WO 2009139302A1
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- WIPO (PCT)
- Prior art keywords
- recording
- thumbnail
- title
- recorded
- playback
- Prior art date
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- 238000000034 method Methods 0.000 description 9
- 238000010586 diagram Methods 0.000 description 5
- 230000002457 bidirectional effect Effects 0.000 description 2
- 239000000284 extract Substances 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 230000011218 segmentation Effects 0.000 description 1
- 230000005236 sound signal Effects 0.000 description 1
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Classifications
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- H04N9/80—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback
- H04N9/82—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback the individual colour picture signal components being recorded simultaneously only
- H04N9/8205—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback the individual colour picture signal components being recorded simultaneously only involving the multiplexing of an additional signal and the colour video signal
- H04N9/8227—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback the individual colour picture signal components being recorded simultaneously only involving the multiplexing of an additional signal and the colour video signal the additional signal being at least another television signal
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- G11B27/326—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier by using information signals recorded by the same method as the main recording on separate auxiliary tracks of the same or an auxiliary record carrier used signal is a video-frame or a video-field (P.I.P.)
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- H04N9/804—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback involving pulse code modulation of the colour picture signal components
- H04N9/8042—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback involving pulse code modulation of the colour picture signal components involving data reduction
Definitions
- the present invention relates to a recording / reproducing apparatus, and more particularly to a recording / reproducing apparatus having a function of selecting a recording title to be reproduced from a list of recorded recording titles.
- Digital recorders as recording / playback apparatuses have become widespread.
- a conventional digital recorder when a user wants to view a desired scene from recorded titles (recorded titles), for example, the user performs a search after starting playback of a recorded title, or assigns a chapter in advance. By displaying the chapter list, the user can view a desired scene.
- Some conventional digital recorders display a list of recorded titles by using the capture screen of each recorded title as a thumbnail and displaying the thumbnails as a list. The user can select and play back a recorded title corresponding to the thumbnail by selecting an arbitrary thumbnail.
- Patent Document 1 discloses an image recording / reproducing apparatus that can select a sufficiently long scene and generate a thumbnail image corresponding to the scene. .
- the system controller of the image recording / playback apparatus equally divides the entire title display time into four, and extracts a plurality of long scenes for each divided time.
- a scene that is considered to be suitable for generating a thumbnail image is determined from the length of the scene and the feature point that is the thumbnail image detected by the feature point detector. Further, the system controller selects a thumbnail group to be a thumbnail image from the determined scene.
- Japanese Patent Application Laid-Open No. 2004-228688 makes it easy to manage the titles of content such as video programs recorded on a large-capacity disk storage medium, and enables management information to be changed in response to editing of the user's content.
- a technique for the purpose is disclosed.
- management information such as a title file of a content such as a video program, a reduced screen file (thumbnail index file) indicating the content, and location information of content data is recorded together in a specific area of the disk storage medium.
- the image data and the sound data are recorded in different areas, and the position information of the sound data is managed separately from the image data.
- a chapter list is displayed by searching after starting playback of the recorded title or by assigning chapters in advance.
- the operation is complicated, and it takes time until a desired scene can be viewed.
- the recording titles as a list
- the capture screen of each recording title is used as a thumbnail and the thumbnails are displayed as a list
- the corresponding recording title must be played back to create a thumbnail for each recording title. Therefore, there is a problem that the reproduction process takes time.
- the thumbnail list displayed from the second time is displayed by reading and displaying the thumbnails stored on the hard disk, thereby speeding up the thumbnail display. .
- the hard disk consumes a capacity for storing thumbnail data, resulting in a problem that the recordable time is reduced.
- Patent Document 1 even if a sufficiently long scene is selected and a thumbnail image is generated, it cannot be displayed using the full screen with equal time division, and the list within the recorded title is excellent. There was no problem. Further, as in Patent Document 2, even when the thumbnail data is stored in the hard disk, there still remains a problem that it takes time to create and display the first thumbnail.
- the present invention has been made in view of the above circumstances, and allows the user to grasp the outline of the recorded title at a glance without having to set chapters in advance. It is an object of the present invention to provide a recording / playback apparatus that can play back.
- a recording / reproducing apparatus comprising: recording means for recording an input video signal as a recording title; and reproducing means for reproducing the recorded title recorded by the recording means.
- Recording title list generation means for generating a recording title list in which titles are listed, display output means for outputting the recording title list generated by the recording title list generation means to a display means connected as an external device, and recording title list
- a thumbnail image generating means for generating the display image, and the display output means is generated by the thumbnail image generating means. It is obtained by and outputting the thumbnails image on the display means.
- the reproduction means corresponds to the selected thumbnail. This is characterized in that the playback of the recorded title is started from the position to be played.
- the thumbnail image generating means when the thumbnail image generating means generates a plurality of thumbnails from the selected recorded title, the total time length of the selected recorded title is determined in advance.
- the thumbnails are equally divided according to the number, and thumbnails are generated based on the images at the respective dividing points.
- the thumbnail image generating means generates a thumbnail based on an intra-frame predictive encoded image that is temporally closest to the image at the dividing point. It is.
- the fifth technical means is the fourth technical means characterized in that the intra-frame predictive encoded image is an I picture in the MPEG encoding system.
- the thumbnail image generating means generates a thumbnail image each time it generates a single thumbnail image when generating a plurality of thumbnail images.
- the display output means outputs an image including the above.
- the seventh technical means is characterized in that, in the sixth technical means, the image generated by the thumbnail image generating means is stored in a temporary buffer and output from the temporary buffer by the display output means.
- the user can grasp the outline of the recorded title at a glance without having to set chapters in advance, and can select and reproduce a desired scene immediately. Also, since the thumbnail created from the title is not stored on the hard disk, the recording capacity can be used effectively without consuming the recording capacity of the hard disk for the thumbnail.
- FIG. 1 It is a block diagram which shows the structural example of the recording / reproducing apparatus which concerns on one Embodiment of this invention. It is a figure which shows the example of a display of the thumbnail in the dividing point which divided
- FIG. 1 is a block diagram showing a configuration example of a recording / playback apparatus according to an embodiment of the present invention.
- the recording / reproducing apparatus 10 is equipped with a tuner 12, an encoder 13, and an external recording medium (BD, DVD, etc.), and an input / output interface (input / output I / F) 14 for inputting / outputting data (writing / reading).
- a control unit 15 configured by a CPU, a ROM, and the like for controlling the processing of the entire apparatus, a decoder 16, an HD (hard disk) 17, and a light receiving unit that receives an operation signal from an operation input means such as a remote controller.
- a display device (not shown) (for example, a CRT device, a plasma display device, a liquid crystal display device, an organic / inorganic EL) to which a title received via the antenna 11 or a recorded title is externally connected.
- Display output means 19 for outputting to a display means such as a device.
- the display output unit 19 outputs a list of recorded titles generated by the control of the control unit 15 and a list of a plurality of thumbnails generated from a specific recorded title to the display device.
- the recording / playback apparatus 10 shown in FIG. 1 has a configuration capable of receiving both analog broadcast waves and digital broadcast waves, but may be configured to receive only one of the broadcast waves.
- the recording / reproducing apparatus 10 is, for example, a hard disk recorder with built-in digital tuner or a BD (Blu-Ray) recorder or DVD recorder, a hard disk integrated BD recorder or DVD recorder, or a hard disk recorder or BD recorder to which a digital tuner can be connected externally. And a DVD recorder, a hard disk integrated BD recorder, a DVD recorder, and the like. When the digital tuner is externally connected, the tuner 12 may be unnecessary.
- HD hard disk
- BD or DVD portable recording media can be used as recording media, but the recording media are not limited to these, and all recording media capable of recording titles can be used. It is possible to apply.
- the recorded title refers to recorded program data itself.
- the tuner 12 When viewing a digital broadcast using the recording / reproducing apparatus 10, the tuner 12 demodulates a high-frequency signal (digital modulation signal) input from the antenna 11 and inputs the demodulated signal to the decoder 16.
- the decoder 16 decodes the input demodulated signal into a video signal and an audio signal, generates a display control output signal from the decoded signal, and outputs the display control output signal to the display output means 19.
- the display control output signal output from the display output means 19 is input to a display device such as a television connected to the recording / playback device 10, and the user views a digital broadcast program corresponding to the display control output signal through the display screen. can do.
- the tuner 12 When recording an analog broadcast program using the recording / reproducing apparatus 10, the tuner 12 demodulates a high-frequency signal (analog modulation signal) input from the antenna 11 and encodes the demodulated signal by the encoder 13. Further, the encoded data is converted into a format (stream) suitable for recording and recorded as a recording title on various recording media such as HD 17 or BD.
- the tuner 12 When recording a digital broadcast program using the recording / reproducing apparatus 10, the tuner 12 demodulates a high-frequency signal (digital modulation signal) input from the antenna 11 and records it on various recording media such as an HD 17 or a BD.
- the decoder 16 decodes the data of the recorded title recorded on the HD 17 or BD into a format that can output video.
- the data is converted and output to the display output means 19.
- the display control output signal output from the display output means 19 is input to a display device such as a television connected to the recording / playback device 10, and the user views the recorded title corresponding to the display control output signal by the display screen. be able to.
- the title is divided into a plurality of thumbnails, and the thumbnails are displayed in a list.
- the thumbnails are displayed in a list.
- the recording / reproducing apparatus 10 includes a recording unit that records an input video signal as a recording title, and a reproducing unit that reproduces the recording title recorded by the recording unit, and records the recorded recording titles as a list.
- Recording title list generation means for generating a title list
- display output means for outputting the recording title list generated by the recording title list generation means to display means connected as an external device, and a plurality of thumbnails of one recording title Thumbnail image generating means for generating an image listing the images.
- the functions of these means are realized by the control unit 15 executing a program stored in the recording / reproducing apparatus 10 and controlling each unit.
- FIG. 2 is a diagram showing a display example of thumbnails at the division points obtained by dividing the recording title into a plurality of parts.
- the recording / playback apparatus 10 divides a recording title into a plurality of equal time intervals when displaying a recorded recording title on a display device such as a television. Thumbnails at positions substantially corresponding to the points are sequentially generated in order of time, arranged in the screen and displayed as a list.
- the process of dividing the recorded title into a predetermined number of divisions and generating an image listing thumbnails is executed by executing a predetermined program in the control unit 15.
- the number of divisions at this time for example, 28 divisions can be selected. However, the number of divisions is not limited to this, and the number of divisions can be set as appropriate.
- a thumbnail of the start point portion of each division unit may be generated to obtain 28 thumbnails, or a thumbnail of the end point portion of each division unit may be generated and similarly 28 pieces Alternatively, a total of 27 thumbnails may be obtained by generating thumbnails at the boundary part (dividing part) of the dividing part. Below, the point which produces a thumbnail is demonstrated only as a division
- the recording title is divided into a plurality (for example, 28) at the current time interval, and a thumbnail is generated based on the image at the division point.
- I-picture frame data that is temporally closest to the division point is used.
- MPEG Motion Picture Experts Group
- a thumbnail is generated for the I picture.
- the I picture for generating the thumbnail the I picture closest in time to the dividing point is selected as described above.
- the I picture, P picture, and B picture indicate frame data in MPEG-Video.
- the MPEG encoding method is used for encoding non-interlaced frame moving images, and enables random access of moving images using a storage medium such as a CD-ROM.
- a picture group consisting of one I picture and a plurality of P pictures / B pictures is arranged as one unit in the encoded data, thereby enabling reproduction in units of picture groups.
- An I picture is an image that is a starting point for playback of a moving image, and is encoded in a still image mode by intra-frame predictive encoding.
- the P picture is encoded by motion compensation interframe prediction from the temporally previous I picture or P picture.
- the thumbnails are generated by reproducing the I picture data closest to the dividing point, Each generated thumbnail is displayed in a list in order of generation.
- the I picture data can generate one image by itself, whereas the P picture and the B picture
- it is necessary to reproduce the I picture first which takes longer than reproducing only the I picture.
- a GOP (group of pictures) including one I picture is composed of 15 pictures, so an I picture appears within at least 0.5 seconds in an image of 30 frames per second. Therefore, it is possible to generate a thumbnail at a position that substantially coincides with a division point obtained by dividing one recorded title into a plurality of pieces.
- thumbnail list display allows the user to determine at a glance what scene is recorded in which part of one recorded title. According to the method of the embodiment of the present invention, unlike chapter list display, it is not necessary to assign chapter marks to recorded titles in advance.
- the time information T of each thumbnail is displayed for each thumbnail.
- the start time of the recorded title is set to “0 (00 hours 00 minutes 00 seconds)”, and the elapsed time information from the start point can be displayed for each thumbnail.
- the control unit 15 calculates or obtains the elapsed time from the start time according to the number of divisions and displays it together with the thumbnails.
- real time information at the time of recording may be used instead of the elapsed time from the start point of the recording title as described above.
- usability can be improved by displaying the time information T of each thumbnail in the recorded title.
- the title can be reproduced from the scene corresponding to the selected thumbnail.
- the operation of moving the focus to a desired thumbnail can be executed by, for example, pressing a direction key of a remote controller provided for operating the recording / playback apparatus 10, and the thumbnail having the focus moved is selected and played back.
- the operation to be started can be executed by pressing an enter button or a playback button provided on the remote controller.
- the data of each thumbnail generated by dividing the recorded title is temporarily stored in the buffer and displayed on the display output means 19 without being saved in the HD, and the thumbnail list screen is displayed. If deleted, the generated data is also discarded.
- generation of thumbnails with the same title is instructed again, the same processing is repeated again to generate a list of thumbnails each time. Thereby, it is not necessary to store thumbnails in the HD, and it is possible to avoid consuming the HD recording area by the thumbnails.
- thumbnails in the title are generated and displayed sequentially, and are displayed in order from thumbnails that are fast in time on the screen.
- the thumbnail display according to the present embodiment is inferior in speed compared to the conventional processing in which the thumbnail once generated is stored in the HD and the thumbnail is read from the HD and displayed.
- the user can be more aware of which scene is recorded at which point in time by showing the user the process of generating thumbnails.
- FIG. 3 and 4 are diagrams showing an example of a recording list display screen for displaying the thumbnail list as shown in FIG.
- the user presses a recording list button provided on a remote control for operating the recording / playback apparatus 10, thereby recording the recording / playback apparatus 10.
- a list can be displayed.
- the display of the recording list is not limited to such a dedicated button, but may be executed by a specific menu operation or a specific key operation.
- a recording list screen 20 using a title name list as shown in FIG. 3 can be displayed.
- a title name list 21 of recorded titles currently recorded on the HD of the recording / reproducing apparatus 10 is displayed.
- Each title in the title name list 21 includes a title name 21a, month and day information 21b, recording time information 21c, and image quality information 21d.
- the detailed information 22 is displayed for the recording title where the cursor is located. The detailed information 22 changes as the cursor moves.
- the recorded titles can be rearranged according to conditions such as new (or old) order, title name order, viewing / non-viewing order, and data amount order.
- the recording list screen 20 also displays a description 23 of buttons provided on the remote control.
- a recording list screen 30 using an index screen (thumbnail) as shown in FIG. 4 may be displayed.
- an index screen that captures the first screen of each recording title is generated, and an index screen list 31 for each title is displayed. This makes it easy to grasp the contents of the recorded title.
- the index screen in this case is generated for each recorded title and stored in the HD.
- the detailed information 32 is displayed for the recording title where the cursor is located.
- the detailed information 32 changes as the cursor moves.
- the recorded titles can be rearranged according to conditions such as new (or old) order, title name order, viewing / non-viewing order, and data amount order.
- the recording list screen 30 also displays button descriptions 33 provided on the remote control.
- These recording list screens 20 and 30 in FIGS. 3 and 4 may be switched and displayed in accordance with a specific operation of a remote controller or the like, and always display one of the recording list screens 20 and 30. May be.
- the thumbnail display of the selected title as shown in FIG. 2 is executed.
- Selection of titles in the recording lists 20 and 30 can be executed, for example, by operating a specific key provided on the remote controller.
- an enter key is operated to start reproduction of the selected title instead of the thumbnail display shown in FIG. It can also be.
- FIG. 5 is a diagram for explaining an example of a processing flow by the recording / reproducing apparatus according to the present invention.
- processing in the application module and the playback module in the recording / playback apparatus is shown.
- the application module and the playback module are software modules that execute processing according to the present embodiment in the recording / playback apparatus 10.
- the hardware is processing executed under the control of the control unit 15 shown in FIG. In the following example, a processing example when thumbnail display is performed for a title having a length of one hour will be described.
- the user operates an operation input means such as a remote controller of the recording / playback apparatus to request to display a thumbnail list of specific recording titles (step S1).
- a request for displaying a thumbnail list of recorded titles is, for example, that an arbitrary title is selected by a user operation from the recording list screens 20 and 30 as shown in FIG. 3 or FIG. 4, and a thumbnail list display of the title is performed by a specific operation. It is executed when instructed.
- the application module starts displaying a list of thumbnails of the selected recording title (step S2).
- the thumbnail display is not displayed.
- a display screen for displaying thumbnails is output from the display output unit 19 of the recording / recording apparatus and displayed on a display device such as a television.
- a reproduction request is made by designating time to the reproduction module (step S3). Since the first thumbnail is the first thumbnail here, the application module designates “00 hours 00 minutes 00 seconds” and issues a playback request to the playback module.
- the playback module plays back the I picture closest to the specified time (in this case, “00 hours 00 minutes 00 seconds”) specified by the application module (step S4).
- the reproduction module sends a reproduction completion notice to the application module (step S5).
- the first thumbnail is displayed by the reproduced I picture (step S6).
- the first thumbnail is displayed in the frame displayed in step S2.
- the application module designates a time for displaying the second thumbnail and sends a reproduction request to the reproduction module (step S7).
- the time information of the second image specified by the application module is “00 hours 02 minutes 08 seconds”.
- the playback module plays back the I picture closest to the specified time specified by the application module (step S8).
- the reproduction module sends a reproduction completion notice to the application module (step S9).
- the application module displays the second thumbnail by the reproduced I picture (step S10).
- the second thumbnail is displayed in a frame adjacent to the first thumbnail displayed in step S6.
- a playback request is sent to the playback module by designating the time for displaying the third thumbnail (step S11).
- the time information of the third sheet specified by the application module is “00 hours 04 minutes 17 seconds”.
- the playback module plays back the I picture closest to the specified time specified by the application module (step S12).
- the reproduction module sends a reproduction completion notice to the application module (step S13).
- the third thumbnail is displayed by the reproduced I picture (step S14).
- the third thumbnail is displayed in a frame adjacent to the second thumbnail displayed in step S10.
- step S15 designating the time (00 hour 57 minutes 51 seconds) of the 28th thumbnail from the application module
- step S17 the application module displays the 28th thumbnail (step S18). In this way, a thumbnail list display of specific titles as shown in FIG. 2 is completed.
- the playback module executes the playback processing of the title from the picture data corresponding to the selected thumbnail.
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- Engineering & Computer Science (AREA)
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Abstract
Description
また、従来のデジタルレコーダにおいては、録画タイトルを一覧表示させるときに、各録画タイトルのキャプチャ画面をサムネイルにして、そのサムネイルを一覧表示できるようにしたものがある。そしてユーザは、任意のサムネイルを選択することで、そのサムネイルに相当する録画タイトルを再生させて視聴することができる。 Digital recorders as recording / playback apparatuses have become widespread. In a conventional digital recorder, when a user wants to view a desired scene from recorded titles (recorded titles), for example, the user performs a search after starting playback of a recorded title, or assigns a chapter in advance. By displaying the chapter list, the user can view a desired scene.
Some conventional digital recorders display a list of recorded titles by using the capture screen of each recorded title as a thumbnail and displaying the thumbnails as a list. The user can select and play back a recorded title corresponding to the thumbnail by selecting an arbitrary thumbnail.
また、録画タイトルを一覧表示させるときに、各録画タイトルのキャプチャ画面をサムネイルにして、そのサムネイルを一覧表示する場合、各録画タイトルのサムネイルを作成するには、該当する録画タイトルの再生処理が必要であり、再生処理に時間がかかるという問題がある。
また、この場合、一度作成したサムネイルはハードディスクに保存し、2回目からのサムネイル一覧表示においては、ハードディスクに保存しておいたサムネイルを読み出して表示させることで、サムネイル表示の高速化を図っている。しかしながら、その結果、ハードディスクでは、サムネイルデータを保存するための容量が消費されてしまうため、録画可能時間が減ってしまうという問題が生じる。 As described above, when a user wants to view a desired scene from one recorded title, a chapter list is displayed by searching after starting playback of the recorded title or by assigning chapters in advance. In some cases, the operation is complicated, and it takes time until a desired scene can be viewed.
Also, when displaying the recording titles as a list, if the capture screen of each recording title is used as a thumbnail and the thumbnails are displayed as a list, the corresponding recording title must be played back to create a thumbnail for each recording title. Therefore, there is a problem that the reproduction process takes time.
In this case, once created thumbnails are stored on the hard disk, and the thumbnail list displayed from the second time is displayed by reading and displaying the thumbnails stored on the hard disk, thereby speeding up the thumbnail display. . However, as a result, the hard disk consumes a capacity for storing thumbnail data, resulting in a problem that the recordable time is reduced.
また、特許文献2のように、サムネイルデータをハードディスクに保存するにしても、一度目のサムネイルの作成、及び表示に時間がかかるという問題は残る。 Also, as in
Further, as in
また、録画再生装置10を用いてデジタル放送番組を録画する場合、チューナ12は、アンテナ11から入力された高周波信号(デジタル変調信号)を復調してHD17又BD等の各種記録媒体に録画する。 When recording an analog broadcast program using the recording / reproducing
When recording a digital broadcast program using the recording / reproducing
上記のように1つの録画タイトルを複数に分割して、分割部のサムネイルを一覧で表示させる際に、サムネイルの生成速度を速くするためにMPEG(Moving Picture Experts Group)にて符号化された各ピクチャ情報のうち、Iピクチャについてサムネイルを生成する。サムネイルを生成するIピクチャは、上記のように分割点に時間的に最も近いIピクチャを選択するものとする。 As described above, when generating a plurality of thumbnails from one recording title, the recording title is divided into a plurality (for example, 28) at the current time interval, and a thumbnail is generated based on the image at the division point. As an image that is actually used for generating a thumbnail, I-picture frame data that is temporally closest to the division point is used.
As described above, when one recording title is divided into a plurality of parts and thumbnails of the divided parts are displayed in a list, each encoded by MPEG (Moving Picture Experts Group) to increase the generation speed of thumbnails. Among the picture information, a thumbnail is generated for the I picture. As the I picture for generating the thumbnail, the I picture closest in time to the dividing point is selected as described above.
例えば、一旦生成したサムネイルをHDに保存しておき、そのHDからサムネイルを読み出して表示させる従来の処理よりも、本実施形態によるサムネイル表示の方が速度的に劣る場合であっても、本実施形態では、サムネイルを生成する過程をあえてユーザに見せることで、どの時点でどのシーンが記録されているかをよりユーザに認識させることができる、という効果が得られる。 When a title thumbnail is created by the above process, a process is performed in which the I picture closest to the dividing position is reproduced to generate a thumbnail and sequentially displayed. In other words, thumbnails in the title are generated and displayed sequentially, and are displayed in order from thumbnails that are fast in time on the screen.
For example, even if the thumbnail display according to the present embodiment is inferior in speed compared to the conventional processing in which the thumbnail once generated is stored in the HD and the thumbnail is read from the HD and displayed. In the embodiment, the user can be more aware of which scene is recorded at which point in time by showing the user the process of generating thumbnails.
録画再生装置10に録画されているタイトルのリストを表示させる場合、例えば、ユーザは、録画再生装置10を操作するためのリモコンに備えられた録画リストボタンを押すことにより、録画再生装置10の録画リストを表示させることができる。勿論、録画リストの表示は、このような専用ボタンに限ることなく、特定のメニュー操作や、特定のキー操作によって実行させるようにしてもよい。 3 and 4 are diagrams showing an example of a recording list display screen for displaying the thumbnail list as shown in FIG.
When displaying a list of recorded titles on the recording /
また、特定のタイトル上にカーソルがある状態で、上記の特定のキー操作ではなく、例えば決定キーを操作することにより、図2に示すサムネイル表示ではなく、選択中のタイトルの再生を開始させるようにすることもできる。 Then, when the user moves a cursor and selects a specific title from either of the recording list screens 20 and 30, the thumbnail display of the selected title as shown in FIG. 2 is executed. Selection of titles in the recording lists 20 and 30 can be executed, for example, by operating a specific key provided on the remote controller.
In addition, when the cursor is on a specific title, instead of the above-described specific key operation, for example, an enter key is operated to start reproduction of the selected title instead of the thumbnail display shown in FIG. It can also be.
アプリケーションモジュールでは、再生モジュールに対して時間を指定して再生要求を行う(ステップS3)。ここではまず1枚目のサムネイルであるため、アプリケーションモジュールでは、“00時間00分00秒”を指定して再生モジュールに再生要求を行う。 Then, the application module starts displaying a list of thumbnails of the selected recording title (step S2). Here, first, only the frame for displaying the thumbnail is displayed, and the thumbnail display is not displayed. A display screen for displaying thumbnails is output from the
In the application module, a reproduction request is made by designating time to the reproduction module (step S3). Since the first thumbnail is the first thumbnail here, the application module designates “00
これを受けて再生モジュールでは、アプリケーションモジュールにより指定された指定時間に一番近いIピクチャを再生する(ステップS8)。再生が完了すると、再生モジュールはアプリケーションモジュールに対して再生完了通知を送る(ステップS9)。そしてアプリケーションモジュールでは、再生されたIピクチャによりサムネイルの2枚目を表示する(ステップS10)。2枚目のサムネイルは、ステップS6で表示した1枚目のサムネイルに隣接して枠内に表示させる。 Next, the application module designates a time for displaying the second thumbnail and sends a reproduction request to the reproduction module (step S7). Here, since the total length of the recorded title is 1 hour and it is set to display 28 thumbnails, the time information of the second image specified by the application module is “00 hours 02 minutes 08 seconds”.
In response to this, the playback module plays back the I picture closest to the specified time specified by the application module (step S8). When the reproduction is completed, the reproduction module sends a reproduction completion notice to the application module (step S9). Then, the application module displays the second thumbnail by the reproduced I picture (step S10). The second thumbnail is displayed in a frame adjacent to the first thumbnail displayed in step S6.
Claims (7)
- 入力映像信号を録画タイトルとして録画する録画手段と、該録画手段が録画した録画タイトルを再生する再生手段と、を備えた録画再生装置において、
録画されている録画タイトルを一覧にした録画タイトル一覧を生成する録画タイトル一覧生成手段と、
該録画タイトル一覧生成手段により生成した録画タイトル一覧を、外部機器として接続された表示手段に出力する表示出力手段と、
前記録画タイトル一覧の表示画面から特定の録画タイトルを選択する操作入力が行われたときに、選択された録画タイトルから、予め定めた数に従う複数枚の画像をサムネイルとして生成し、生成したサムネイルを一覧にした画像を生成するサムネイル画像生成手段とを有し、前記表示出力手段は、該サムネイル画像生成手段により生成したサムネイル画像を前記表示手段に出力することを特徴とする録画再生装置。 In a recording / playback apparatus comprising recording means for recording an input video signal as a recording title, and playback means for playing back the recorded title recorded by the recording means,
A recording title list generating means for generating a recording title list in which recorded recording titles are listed;
Display output means for outputting the recorded title list generated by the recorded title list generating means to a display means connected as an external device;
When an operation input for selecting a specific recording title is performed from the display screen of the recording title list, a plurality of images according to a predetermined number are generated as thumbnails from the selected recording titles, and the generated thumbnails are A recording / playback apparatus comprising: thumbnail image generation means for generating a list of images, wherein the display output means outputs the thumbnail images generated by the thumbnail image generation means to the display means. - 請求項1に記載の録画再生装置において、前記再生手段は、前記サムネイル画像により表示される表示画面に対して特定のサムネイルを選択する操作入力が行われたときに、選択されたサムネイルに相当する位置から録画タイトルの再生を開始することを特徴とする録画再生装置。 2. The recording / playback apparatus according to claim 1, wherein the playback unit corresponds to a selected thumbnail when an operation input for selecting a specific thumbnail is performed on a display screen displayed by the thumbnail image. A recording / playback apparatus, wherein playback of a recorded title is started from a position.
- 請求項1または2に記載の録画再生装置において、前記サムネイル画像生成手段は、選択された録画タイトルから複数のサムネイルを生成する際に、前記選択された録画タイトルの全時間長を前記予め定めた数に従って等分に分割し、各分割点、もしくは各分割部の始点または終点の画像に基づいて前記サムネイルを生成することを特徴とする録画再生装置。 3. The recording / playback apparatus according to claim 1, wherein the thumbnail image generation unit determines the total time length of the selected recording title when generating a plurality of thumbnails from the selected recording title. A video recording / playback apparatus that divides equally according to a number and generates the thumbnail based on each division point or an image of a start point or an end point of each division unit.
- 請求項3に記載の録画再生装置において、前記サムネイル画像生成手段は、前記サムネイルを、前記分割点の画像に時間的に最も近いフレーム内予測符号化画像に基づいて生成することを特徴とする録画再生装置。 4. The recording / playback apparatus according to claim 3, wherein the thumbnail image generating means generates the thumbnail based on an intra-frame predictive encoded image that is temporally closest to the image at the division point. Playback device.
- 請求項4に記載の録画再生装置において、前記フレーム内予測符号化画像は、MPEG符号化方式におけるIピクチャであることを特徴とする録画再生装置。 5. The recording / reproducing apparatus according to claim 4, wherein the intra-frame predictive encoded image is an I picture in an MPEG encoding system.
- 請求項1~5のいずれか1に記載の録画再生装置において、前記サムネイル画像生成手段は、前記複数のサムネイル画像を生成する際に、一枚のサムネイル画像を生成するごとに、該生成したサムネイルを含む画像を前記表示出力手段により出力させることを特徴とする録画再生装置。 6. The recording / playback apparatus according to claim 1, wherein the thumbnail image generating means generates the thumbnails each time it generates one thumbnail image when generating the plurality of thumbnail images. A video recording / playback apparatus, wherein the display output means outputs an image including
- 請求項6に記載の録画再生装置において、前記サムネイル画像生成手段が生成した画像は一時バッファに記憶し、該一時バッファから前記表示出力手段により出力されることを特徴とする録画再生装置。 7. The recording / reproducing apparatus according to claim 6, wherein the image generated by the thumbnail image generating means is stored in a temporary buffer and output from the temporary buffer by the display output means.
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EP09746509A EP2276245A4 (en) | 2008-05-16 | 2009-04-30 | Recording/playback device |
JP2010511951A JPWO2009139302A1 (en) | 2008-05-16 | 2009-04-30 | Recording / playback device |
BRPI0912180A BRPI0912180A2 (en) | 2008-05-16 | 2009-04-30 | recording / playback device |
MX2010011793A MX2010011793A (en) | 2008-05-16 | 2009-04-30 | Recording/playback device. |
US12/991,385 US20110058788A1 (en) | 2008-05-16 | 2009-04-30 | Recording/playback device |
CN2009801183223A CN102027742A (en) | 2008-05-16 | 2009-04-30 | Recording/playback device |
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